What you could do is (assuming you aren’t using terrain water anywhere else) you can go to the Terrain object in Workspace and mess with the WaterReflectance and WaterTransparency.
Remember that this will also mess with other water in your entire game!
To make it look like its sort of wet is really hard with how little Roblox offers when it comes to the settings with water and so the best effect you can make is, well, flooded.
I even went ahead and tried to see if there was anyway I could try to make the “wet road” effect and I just gotta say its hard.
The best I can say is to just keep messing with the color of the water, the wave size, how far into the water is the road emerged and just keep trying.
All in all it looks great and I wish I could make an attempt of helping you improve it, but I can’t seem to make a break-through.